F28F 21/067
Details
Official title: {Details}
F28F21/067 (Details) appears on 212 US grants and 208 published applications in this corpus.
Search patents in F28F- Granted patents
- 212
- Published applications
- 208
- Assignees
- 184
- Inventors
- 649
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 8 |
| 2003 | 4 | 4 |
| 2004 | 2 | 9 |
| 2005 | 7 | 9 |
| 2006 | 7 | 9 |
| 2007 | 4 | 8 |
| 2008 | 3 | 6 |
| 2009 | 0 | 6 |
| 2010 | 3 | 9 |
| 2011 | 2 | 4 |
| 2012 | 3 | 7 |
| 2013 | 4 | 5 |
| 2014 | 2 | 12 |
| 2015 | 4 | 9 |
| 2016 | 6 | 19 |
| 2017 | 6 | 18 |
| 2018 | 13 | 13 |
| 2019 | 11 | 11 |
| 2020 | 11 | 12 |
| 2021 | 6 | 6 |
| 2022 | 9 | 5 |
| 2023 | 5 | 8 |
| 2024 | 4 | 3 |
| 2025 | 3 | 2 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and method to prevent splitting or rupture in fluid coils26 May 2026US 12,638,242 B2Coil Master Corporation
- Plate for heat exchanger and heat exchanger with such plate18 Nov 2025US 12,474,124 B2Vertiv Corporation
- Vapor-selective nanostructured membrane heat exchangers for cooling and dehumidification26 Aug 2025US 12,398,894 B2Purdue Research Foundation
- Cooling device and method for manufacturing the same4 Feb 2025US 12,219,735 B2Mitsui Chemicals, Inc.
- X-ray high-voltage generator with an oscillating heat pipe17 Sep 2024US 12,096,541 B2Siemens Healthineers AG
- Improvements in and relating to nucleation agent compositions and nucleation agent pieces and methods for nucleating phase change materials (pcms)24 Sep 2026US 2026/0287274 A1Sunamp Limited
- Partition member for total heat exchange element, total heat exchange element using same, and method for producing partition member for total heat exchange element27 Aug 2026US 2026/0251410 A1Oji Holdings Corporation
- Apparatus, System and Method for Heat Exchanger End Plate Erosion Resistance13 Aug 2026US 2026/0235371 A1Westermeyer Industries Inc.
- Heat exchanger and air handling unit6 Aug 2026US 2026/0227140 A1Daikin Industries, Ltd.
- Parallel flow heat exchanger2 Jul 2026US 2026/0185785 A1Kyungdong Navien Co., Ltd.
Most cited
By later US patents
- Potting of tubular bundles in housing125US 6,113,782 ATerumo Cardiovascular Systems Corporation · 2000
- Hollow fiber assembly for use in fluid treatment apparatus103US 3,993,816 ARhone-Poulenc Inc. · 1976
- Overmolding insert for heat exchanger, process for manufacturing a heat exchanger, and heat exchanger produced thereby51US 6,787,116 B2Aquatherm Industries, Inc. · 2004
- Heat exchanger49US 3,993,126 ADelanair Limited · 1976
- Closed loop cooling for a marine engine46US 5,004,042 ABrunswick Corporation · 1991